Thanks esshup,right now the outflow pond is 10' by 10' and about 5 ft deep. I have fhm I'n it for feeding and supplying upper pond.the water drops 6' down to 90 elbow from 3/4 pond , the water gets mixed up good and enters lower pond . The outflow never freezes over I'n winter since there's constant water moving through it.There's a few monster gills I'n it.
